The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1993
Filed:
Sep. 11, 1992
Applicant:
Inventor:
Hiroshi Ichijo, Tokyo, JP;
Assignee:
Kabushiki Kaisha Kenwood, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 13 ; 345 20 ; 345185 ;
Abstract
A graphic image is displayed on a CRT screen according to the coordinate data which is sequentially read out of a memory. The memory comprises a first storage area which stores character image coordinate data and a second storage area which stores graphic image data such as signal wave. The ratio of addressing times for the first and second storage areas of the memory is set to 1:n. Accordingly, the graphic image is irradiated on the CRT screen n times more than that of one character image. Since the irradiation period of time of each spot is defined by a clock pulse width, there is no irradiation variation from one spot to another spot.